diff options
Diffstat (limited to 'dev/libSystem/SystemKit/Syscall.h')
| -rw-r--r-- | dev/libSystem/SystemKit/Syscall.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/dev/libSystem/SystemKit/Syscall.h b/dev/libSystem/SystemKit/Syscall.h index 436665ae..5a840df1 100644 --- a/dev/libSystem/SystemKit/Syscall.h +++ b/dev/libSystem/SystemKit/Syscall.h @@ -9,11 +9,25 @@ #include <libSystem/SystemKit/System.h> #include <cstdarg> -#ifndef SYSCALL_HASH -#define SYSCALL_HASH(str) (UInt64) str -#endif // !SYSCALL_HASH - IMPORT_C VoidPtr libsys_syscall_arg_1(SizeT id); IMPORT_C VoidPtr libsys_syscall_arg_2(SizeT id, VoidPtr arg1); IMPORT_C VoidPtr libsys_syscall_arg_3(SizeT id, VoidPtr arg1, VoidPtr arg3); IMPORT_C VoidPtr libsys_syscall_arg_4(SizeT id, VoidPtr arg1, VoidPtr arg3, VoidPtr arg4); + +inline UInt64 libsys_hash_64(const Char* path) { + const UInt64 FNV_OFFSET_BASIS = 0xcbf29ce484222325ULL; + const UInt64 FNV_PRIME = 0x100000001b3ULL; + + UInt64 hash = FNV_OFFSET_BASIS; + + while (*path) { + hash ^= (Char) (*path++); + hash *= FNV_PRIME; + } + + return hash; +} + +#ifndef SYSCALL_HASH +#define SYSCALL_HASH(str) libsys_hash_64(str) +#endif // !SYSCALL_HASH
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